The Señor Presidente Obama may want a high speed train. We want it too. Actually, we want a monorail, which have been dreamed and actually built since the very beginning of the 20th century.
Dark Roasted Blend has published a good collection of early high speed monorail concepts like the ones you are seeing above. Some of them are gorgeous. Sadly, the US high speed trains won't look anything like this. Hopefully, they will look like this:
Soundtrack included. [Dark Roasted Blend]